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After Sos'umptu and Myrineyl revealed the yochlol’s message to Quenthel, the matron mother once again met with Gromph. The archmage took Quenthel to an Underdark tunnel outside the city to speak with the diminished illithid Methil El-Viddenvelp, Yvonnel’s secret advisor who was believed to have been killed over a century earlier. Gromph had been using Methil to access the memories in Yvonnel’s severed head, and now following Lolth’s commands, he had the illithid forcefully infuse Quenthel with his mother’s knowledge, sensibilities, and understanding.